ASTM ASTM A 312 254 smoo duplex stainless hlau orshore pipeline
ASTM A312 UNRNT S31254 (254SMO) yog qhov siab {3} {} {} {} {} {} {} {} {} {} {} {} {} { Nws cov ntsiab lus tseem ceeb muaj xws li kev tiv thaiv zoo heev rau pitting thiab crevice corrosion vim nws cov ntsiab lus molybdenum (6%); superior tsis kam rau kev ntxhov siab corrosion cracking piv rau cov qauv tshuaj phem; Thiab cov kev zoo xws li muaj zog ntawm kev nce siab kub. Cov khoom no ua rau nws cov ntaub ntawv zoo tshaj plaws rau cov ntawv thov muaj feem xyuam dej hiav txwv, xws li pob tawb dej txias, thiab dej txias dej kom txias.
Dab tsi yog TTM A312 S31254 cov khoom siv?
Super Austenitic Stainless Hlau
254smo yeeb nkab, tseem hu ua S31254, x1cnimocun20-18-7, alloy 6mo, lossis 1.4547, ASTM A213, Astm A213, Astm A213, Astm A213, thiab EN 10216-5. Nws yog ib tus super ustenitic stainless hlau tsim rau qhov siab tshaj plaws rau pitting thiab crevice corrosion.
S31254 Seamless yeeb nkab yog qhov siab - Kev ua haujlwm stainless hlau alloy tsim rau cov ntawv thov tseem ceeb, tshwj xeeb hauv kev xeb ib puag ncig. Nws muaj kev tiv thaiv zoo heev rau pitting, crevice corrosion, thiab kev nyuaj siab corrosion tawg, ua rau haum rau ib puag ncig muaj chlorides.
Lub alloy feem ntau muaj qib siab ntawm cov chromium (kwv yees li 20%) thiab obecel (kwv yees li 18%), nrog rau cov tseem ceeb ntawm Molybdenum (kwv yees li 6%) thiab nitrogen. Qhov kev sib xyaw no tsis tsuas yog txhim kho nws cov corrosion tsis kam tab sis kuj tseem ua rau nws lub zog thiab lub zog thaum muaj kub.
Mechanically, S31254 cov khoom pov thawj zoo tensile zog, tuaj yeem tawm tsam, ua rau nws ua kom lub siab ntsuas thiab kub tsis muaj kev ua tau zoo. Nws cov kev tsim nyog thaum lub sij hawm seamless yeeb kev tsim kho kom muaj cov qauv kev du thiab tsis muaj zog ntawm cov ntsiab lus tsis muaj zog.
Kev lag luam siv S31254 seamless yeeb suav nrog cov petrochemical suav nrog cov petrochemical, roj thiab roj, thiab lub zog, uas tso siab rau qhov xav tau ntawm
ASTM 312 254 smoo duplex stainless hlau offshore pipeline specification:
| Kev qhia tshwj xeeb | ASTM A312 & nws sib npaug ASME, DIN & En Txheem |
| Cov menyuam kawm qib | 254smo, uns tsis s31254, DIN 1.4529 |
| Ntaus | Ncaj seamless / Welded Yeeb Nkab |
| Txheej hauv lub taub | 1/2 '' rau 48 '' lossis kev cai loj |
| Phab Ntsa Thickness | Sch 5s rau sch xxs |
| Qho ntev | Upto 6 meters lossis kev cai txiav ntev |
| Tus me nyuam | Kev daws Annealed & Pickled |
| Xaus | Tiaj kawg, beveled kawg |
| Lwm Yam Kev Xeem | Kev Ntsuam Xyuas Edd, Kho Mob Hydrostatic, Kev sim tshuaj hilostrat, pluav kev kuaj, hardness, hardness ntsuas, ntsuas tensile thiab lwm yam. |
| Qho loj dav | Txhua Tus Yeeb Nkab & Tube yog tsim thiab kuaj / xeem ntawv rau cov qauv muaj feem xyuam nrog ASTM thiab ASME |
| Yam ntim | Plywood rooj plaub / woven hnab hauv pob |
254SMO Duplex Stainless Hlau Offshore Pipeline Tshuaj Muaj Zog:
| Teem nqi | C | Mn | P | S | Si | Cr | Ni | Mo | N | CU |
| S31254 | 0.02 max | 1.00 Max | 0.03 max | 0.01 max | 0.08 max | 19.5-20.5 | 17.5-18.5 | 6.0-6.5 | 0.19-0.25 | 0.5-1.0 |
254SMO Duplex Stainless Hlau Offshore cov khoom siv hluav taws xob tshuab hluav taws xob:
| Teem nqi | t |
Lub zog tensile min, ksi (mpa) |
Paib lub zog min, ksi (mpa) |
Elongation nyob rau hauv 2 hauv. lossis 50 hli, min (%) |
Kev kho tshav kub Kub, min,℃f (degree) |
| S31254 |
·t tsawg dua li lossis sib npaug rau 0.187in. (5.00mm) ·t> 0.187in. (5.00mm) |
·98(675) ·95(655) |
·45(310) ·45(310) |
35 | 2100(1150) |
Cov khoom siv cov yam ntxwv thiab cov txiaj ntsig
Corrosion Kuj: Vim nws cov ntsiab lus molybdenum siab, 254smo cov khoom pov thawj zoo heev rau cov corrosion, pitting, thiab crevice corrosive nyob rau hauv corrosive ib puag ncig xws li dej hiav txwv. Nws tseem tiv qhov kev ntxhov siab ntxhov siab corrosion cracking (SCC) thiab intergranular corrosion.
Lub zog siab: Nws ua cov khoom lag luam siab muaj zog, txawm tias thaum nce qhov kub, thiab nws cov ntsiab lus nitrogen ua rau nws muaj zog.
Lub npe: nws yog cov khoom siv rau astm ittm 312 seamless cov yeeb nkab thiab feem ntau hu ua "6% mo" alloy vim nws molybdenum cov ntsiab lus.
Tus nqi - ua tau zoo: hauv qee cov ntawv thov, nws tuaj yeem yog tus nqi ntau dua rau qhov siab- alloys.
Offshore Piping Daim Ntawv Thov
Dej hiav txwv: Ballast Dej, Hluav Taws Kub Kev Tiv Thaiv, thiab dej Txias Dej Txias.
Hydraulic thiab cov kab ntsuas: nws lub durability ua rau nws haum rau high-}} qhov kev siv siab.
Petrochemical: Khoom siv hauv cov roj ntau lawm thiab lwm yam kev lag luam tshuaj.
Desalination: Cheebtsam ntawm cov nroj tsuag desalination.
GNee steel tshwj xeeb hauv kev tsim khoom thiab muag ntawm ntau qhov nickel {}}}}}}}}}}}}}}}}}} 800H / HT, Incoloy 825, Monel Alloy 400, Monel K500, thiab High-kub alloys. Gnee Steel cov khoom yog dav siv nyob rau hauv Aerospace, tshuaj lom neeg, hluav taws xob hluav taws xob, siv hluav taws xob, thiab lub zog hluav taws xob, thiab lub zog nuclear zog, thiab lub zog nuclear lub zog. Peb tseem muab cov kev cai ua kom haum rau cov neeg siv khoom xav tau. Rau alloy tus nqi nug cov lus nug lossis customized alloy cov kev daws teeb meem, thov hu rau peb rau ib nqe lusss@gneesteel.com.
